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Supplementary system element
Supplementary system elements are situated hierarchically below basic system elements; there are pe-
ripheral elements, and protocol elements
Switch
Network device for connetion and distribution in ethernet
System element
Functional unit consisting of hardware and firmware
System-internal information
Information that is used exclusively for the exchange of control information between peripheral elements
and system functions, and that is not available to the user. It can be transported through the system like a
ž periodical information or like a ž spontaneous information object.
A system-internal information is only mentioned in order to explain the behavior of the described func-
tions.
T
TAP
Telocator Alphanumeric Protocol
TCP/IP
Transmission Control Protocol/Internet Protocol
TETRA
Terrestrial trunked radio, universal platform for different mobile radio services, time multiplex system with
4 time slots
TM
Terminal Module; Module for mounting on a DIN-rail
TM bus
Bus between peripheral control module (Master) and I/O module (Slave)
SICAM TOOLBOX II
PC-based set of tools for configuration and service of SICAM automation units
U
User diagnostic classes
Serve for the classification of the individual diagnosis information items additionally to the system diag-
nostic classes. The are freely allocatable (maximal 8 classes).
User diagnostic records
Diagnosis information items, that are formed by means of application-specific routings from the diagnosis
bits of the detailed diagnostic table. Maximal 8 user diagnostic classes can be allocated.
V
VAC
Volts of Alternating Current
VDC
Volts of Direct Current
VPN
Virtual Private Network (logical connection for secure transmission of data via internet)
W
WAN
Wide Area Network
Web services
Web standard for function calls between independent devices
SICAM RTUs, User Manual SICAM CMIC
DC8-001-2.09, Edition 08.2016
Glossary
413
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